MATH WEBSITES FOR TEACHERS AND STUDENTS

MATH WEBSITES FOR TEACHERS AND STUDENTS

Access these sites through your computer’s Internet connection. Open the underlined address (URL). Information can be printed or downloaded to your computer. Be sure to follow links to other sites and find your way back with the "Back" button. This list contains links to Thinkquest sites. The Thinkquest library has been available on and off recently so you may need to try more than once. Also, we note where we found broken links in our sampling of links within a site. Teachers will need to replace these links with their own. Keep in mind that online lessons and webquests may appear on more than one site.

All of the sites listed were active as of March 12, 2004. The evaluation is by the AVA Center staff according to the amount of information given, the general appearance of the site and its potential use in the classroom. This list is also sent through email if you have a school email address. Let us know if you would like to be added to our mailing list.

Websites Lesson Plans & Activities Webquests

WEBSITES

A+ PLUS MATH
http://www.aplusmath.com/
A fun site where kids can learn math interactively. Sections: Game Room, Flash Cards, Homework Helper and Worksheets. Excellent

AAA MATH
http://www.aaamath.com/
A huge site for basic math skills. Set up by grade level or math topic. Challenges and games. Excellent

ALLMATH.COM – MATH SITE FOR KIDS
http://www.allmath.com/
A huge site with problems, calculators, converters, flash cards and more. Sections: Math Tools, Flash Cards, Metric Converter, The Magic Square (game), Math Glossary, Multiplication Table, Metric Conversion Factors and lots of links. Excellent

COOLMATH.COM – AN AMUSEMENT PARK OF MATH
http://www.coolmath.com/
Calculators, games, worksheets, word problems and more. Sections: Too Cool to Miss; Fractals; Math, etc.; Math Lesson, etc.; Coolmath Link Center; Fractions; Calculators; Graphing Calculators and more. A fun site that helps kids learn. Excellent

CORNELL THEORY CENTER MATHEMATICS GATEWAY
http://www.tc.cornell.edu/Services/Edu/MathSciGateway/math.asp
A huge number of math links. Excellent

CURIOUS MATH.COM
http://www.curiousmath.com/
A collection of math tips and tricks. Better than it sounds. Excellent

ENC K-12 MATH AND SCIENCE TEACHER CENTER
http://www.enc.org/
A collection of resources for teaching K-12 math and science. Includes lesson plans, curriculum resources, links and more. Excellent

EQUIVALENCE – AN I-MATH INVESTIGATION
http://illuminations.nctm.org/imath/across/balance/index.html
An online math game on equivalence. "In this i-Math Investigation, the concept of equivalence is explored within the algebra strand initially using a virtual representation of a physical pan balance and gradually moving towards more abstraction." Excellent

ESCAPE FROM PLANET KNAB NEW!
http://www.escapefromknab.com/
Escape from Planet Knab by correctly figuring savings from wages. Excellent

THE EXPLORER
http://explorer.scrtec.org/explorer/
"The Explorer^TM is a collection of educational resources (instructional software, lab activities, lesson plans, student created materials ...) for K-12 mathematics and science education. You may browse through mathematics and science education curricula (we plan to expand to other curricula) or conduct searches that focus on specific interests. Many resources are available in the Adobe Acrobat format that is readable by Macintosh, Windows and other OSs." Contains a complete math curriculum. Excellent

FACTOR GAME
http://illuminations.nctm.org//imath/6-8/FactorGame/index.html
A math game. "The Factor Game engages students in a friendly contest in which winning strategies involve distinguishing between numbers with many factors and numbers with few factors. Students are then guided through an analysis of game strategies and introduced to the definitions of prime and composite numbers." Excellent

FIGURE THIS! MATH CHALLENGES FOR FAMILIES
http://www.figurethis.org/index40.htm
A series of challenges for students and families, all of which involve math. Note: You must download the software to take the challenges. Challenges include math computation, measurement, geometric shapes and more. Excellent

A GALLERY OF INTERACTIVE GEOMETRY NEW!
http://www.geom.uiuc.edu/apps/gallery.html
Sections: WebPisces; Projective Conics; Build a Rainbow; Orbital Pinball; Quasi Tiler; Teichmuller Navigator; Kali; Integrator; and Unifweb. Excellent

HANDLEY MATH PAGE
http://www.pen.k12.va.us/Div/Winchester/jhhs/math/mathhome.html
A high school level math page with extensive information. Sections: Math Humor, Problem of the Week, Math Facts, Puzzles, Math Poems & Songs, Lesson Plans, and Math Quotes. The lesson plans include Algebra, Geometry, Trigonometry, Statistics and Calculus Activities. Excellent

THE MACTUTOR HISTORY OF MATHEMATICS ARCHIVE
http://www-groups.dcs.st-and.ac.uk/~history/
A collection of indexes of mathematics topics. Sections: Biographies Index, History Topics Index, Famous Curves Index, Mathematicians of the Day, and more. Excellent

MANIPULA MATH
http://www.ies.co.jp/math/java/
A collection of almost 300 math applets for middle to high school students. Sections: Middle School (Geometry), Trigonometry, Calculus, Vector, Complex Numbers, Conics, and Miscellaneous. Excellent

MATH CATS – MATH FUN FOR KIDS
http://www.mathcats.com/
Fun math projects and activities. Sections: Math Cats Explore, Math Cats Love Microworlds (projects), Math Crafts, Math Cats Art Gallery, Math Cats Attic and Math Cats Love Mail. Excellent

MATH IN DAILY LIFE
http://www.learner.org/exhibits/dailymath/
Math is used all the time in daily life. This PBS companion site discusses the use of math in different situations. Sections: Playing to Win, Savings & Credit, Population Growth, Home Decorating, Cooking by Numbers, The Universal Language, and Related Resources. Excellent

MATH-KITECTURE – REAL LIFE MATH, ARCHITECTURE AND COMPUTERS
http://www.nycenet.edu/oit/math-kitecture/
"Students can become architects in their mathematics classrooms. Math-Kitecture has a number of activities, including "Floor Plan your Classroom," which offer engaging ways for students to study mathematics by doing real-life architecture. Students learn estimation, measuring skills, proportion, and ratios by hand-drafting a floor plan of their classroom to scale." Excellent

MATH MANIA MADNESS
http://www.sinc.sunysb.edu/Stu/rgonsalv/index.html
A collection of math-related sites. Sections: Math World, Math E-Zine, Math Webquest, Site Assessment (assessment of math sites). Excellent

MATH PLANET – A THINKQUEST SITE
http://library.thinkquest.org/16284/index_s.htm?tqskip1=1&tqtime=0331
Problem solving, crash courses on Algebra and Geometry, advanced math help, SAT and ACT reviews. Excellent

MATH RESOURCES
http://www.suelebeau.com/math.htm
An extensive collection of math links. Excellent

MATH RESOURCES FROM SCORE
http://score.kings.k12.ca.us/additional.html
A page of math resources. Excellent

MATH TEACHERS PLACE
http://mathforum.org/teachers/
All kinds of tips and tricks for teaching math at all levels. Excellent

MATH.COM – THE WORLD OF MATH ONLINE
http://www.math.com/
Homework Help, Ask an Expert, Practice, Calculators & Tools, Games, Store. Includes: Basic Math, Everyday Math, Pre-Algebra, Algebra, Geometry, Trigonometry, Statistics, Calculus, Advanced Topics, Fractions, Decimals, Integers, Exponents, Inequalities, Percents, and Square Roots. Excellent

MATHLETICS NEW!
http://oncampus.richmond.edu/academics/as/education/projects/webunits/math/sport.html
"Here are four examples of sports that use math in some way. Only one math application is given for each sport, although many more exist. Try clicking on the options below to see how simple calculations can add to your game." Very Good

THE MATHS FILE GAME SHOW
http://www.bbc.co.uk/education/mathsfile/index.shtml
Online Flash games for math. Games include: Saloon Snap, Fish Tank, Planet Hop, Late Delivery, Train Race, Builder Ted and more. Includes a Teachers section. Excellent

THE MINT: IDEAS FOR YOUNG KIDS NEW!
http://www.themint.org/young/index.php
Excellent ideas on helping children understand how to manage money and how our financial systems work. Includes: The Four Bank System, How Saving Works, Be a Smart Spender and more. Excellent

MISCELLANEOUS MATHEMATICAL UTILITIES
http://www3.telus.net/thothworks/Mathfxns.html
Links to several math utilities. Sections: Root-Finding Routines, Utilities for Finding Maxima/Minima of Functions, N Equations in N Unknowns, Eigenvalues and Eigenvectors, Numerical Integration, Examples of Applications of Some of These Utilities and Other Utilities. Excellent

MUDD MATH FUN FACTS
http://www.math.hmc.edu/funfacts/
A site for teachers with fun math facts to enrich your lessons. Excellent

MULTIFLYER – MULTIPLICATION GAME NEW!
http://www.gdbdp.com/multiflyer/
"Welcome to Multiflyer, a game for anyone who is trying to learn multiplication. As the pilot of a space ship far in the future, you must save the solar system from gravitational anomalies while learning and memorizing the multiplication tables." Excellent

OJK’S PRECALCULUS STUDY PAGE NEW URL!
http://home.alltel.net/okrebs/
Tons of problems, tools, quizzes, puzzles and more. Excellent

PLANE MATH ACTIVITIES NEW!
http://www.planemath.com/activities/pmactivitiesall.html
Three sections: Applying Flying, Pioneer Plane and Plane Math Enterprises. Each has several activities, all with an aviation theme. Excellent

PRIMARY MATH GAMES NEW!
http://www.primarygames.com/math.htm
A cute collection of math games for primary students. Includes: Little Rocket Man, Trouble Bubbles, Dot’s Checkers and more. Excellent

PROBLEMS TO ENJOY
http://www.1000problems.com/
A source for teachers of "ready-made" word problems for students. Sections: Number, Algebra, Shape & Space, Statistics, All Problems, What’s New and Submit Problems. Excellent

PROFESSOR FREEDMAN’S MATH HELP
http://www.mathpower.com/
"This site provides information about basic math, algebra, study skills, math anxiety and learning styles." Although intended for community college students, the math is applicable to younger students also. Sections: Math Teacher’s Ten Commandments, Ten Ways to Reduce Math Anxiety, Math Videos (online clips), Study Skills Tips, Math Anxiety Test, The Math Student Pledge, Students’ Math Anxiety Bill of Rights, Identify Your Learning Style, My Classroom, Fun Stuff, Elementary Algebra – Student Tutorials, Homework Assignments, and Math Fundamentals- Student Tutorials, Homework Assignments. Excellent

PURPLE MATH – YOUR ALGEBRA RESOURCE
http://www.purplemath.com/
Lessons and resources for learning algebra. Excellent

PUZZLEMAKER.COM
http://www.puzzlemaker.com/
A puzzle generator from Discovery School in which teachers and students can create word and math puzzles. Excellent

SUPERKIDS MATH WORKSHEET CREATOR
http://www.superkids.com/aweb/tools/math/
Students or teachers can create their own math drill sheets. Sections: Addition, Subtraction, Mixed Addition and Subtraction, Multiplication, Division, Fractions, Greater Than/Less Than, and Rounding. Excellent

THE THINKING BEHIND THE MATH
http://sln.fi.edu/math/index.html
Online math activities from the Franklin Institute. Includes: Exhibit Math, Melting Pot Math: Multicultural Problems for the 21^st Century, PEMDAS, Open-ended Math Problems, Puzzling and Perplexing Seasonal Math Problems, Neighborhood Math, Mathematics Hotlist, and Toothpick Puzzles. Excellent

THIS IS MEGA MATHEMATICS
http://www.c3.lanl.gov/mega-math/
A huge site for high school and college math students. Sections: The Most Colorful Math of All, Welcome to the Hotel Infinity, Games on Graphics, An Unusual Day at Unusual School, Untangling the Mathematics of Knots, Algorithms and Ice Cream for All, and Machines That Eat Your Words. Click on the ink bottle for math lessons generated by Mega Mathematics. Outstanding. Excellent

TOTALLY TESSELLATED – A THINKQUEST SITE
http://www.abc.lv/thinkquest/tq-entries/16661/
"This site will give you a comprehensive introduction to tessellations. It will explain the basic mathematics underlying tessellations, as well as allow you to browse through many examples of tessellations in real life. M. C. Escher and his well-known tessellations are also covered in this site." Excellent

VISUAL FRACTIONS – AN ONLINE FRACTION TUTORIAL
http://www.visualfractions.com/
Online practice in fractions. Sections: Identify Fractions, Rename Fractions, Compare Fractions, Add Fractions, Subtract Fractions, Multiply Fractions and Divide Fractions. Excellent

A WEB-BASED INTERACTIVE STOCK MARKET LEARNING PROJECT FOR MIDDLE SCHOOL STUDENTS
http://archive.ncsa.uiuc.edu/edu/RSE/RSEyellow/gnb.html
"This project revolves around an interactive stock market competition between classmates using real-time stock market data from the New York Stock Exchange and NASDAQ." "The Stock Market Project is a multidisciplinary approach to teaching about the stock market. We have included lesson plans for English, Math and Social Studies, as well as lessons that relate directly to the stock market alone." Excellent

WEBMATH NEW!
http://www.webmath.com/
Help with math problems. Sections: Math for Everyone, General Math, K-8 Math, Algebra, Plots & Geometry, Trig. & Calculus, and Other Stuff. Excellent

WORD PROBLEMS FOR KIDS
http://www.stfx.ca/special/mathproblems/welcome.html
A series of word problems for grades 5-12. Excellent

THE ABACUS: THE ART OF CALCULATING WITH BEADS
http://www.ee.ryerson.ca:8080/~elf/abacus/index.html
A history of the abacus, online exercises, interactive abacus tutor, and more. Very Good

ASK DR. MATH
http://mathforum.org/dr.math/
A forum to send in math questions. Search the archives for previously asked questions. Very Good

CLEVER GAMES FOR CLEVER PEOPLE NEW!
http://www.cs.uidaho.edu/~casey931/conway/games.html
"Just play these games and try to win. As you understand the games and become expert at playing them, you will be building tools for understanding numbers and becoming an expert at playing with them. Describe what you understand about the games. Use words and pictures that make sense to you and your friends." Games: Stop-Gate, Snort, Traffic Jam, All the King’s Horses, Hackenbush Unrestrained and more. Very Good

CONSTRUCTING YOUR OWN SET OF TANGRAMS
http://mathforum.org/trscavo/tangrams/construct.html
A student activity in which they construct their own set of tangrams. Very Good

FAMOUS PROBLEMS IN THE HISTORY OF MATHEMATICS
http://mathforum.org/isaac/mathhist.html
A look at the history of mathematics through math problems which led to discoveries. Sections: The Bridges of Konigsberg, The Value of Pi, Puzzling Primes, Famous Paradoxes, The Problem of Points, A Proof of the Pythagorean Theorem, and A Proof That е is Irrational. Very Good

FAST MATH FACTS NEW!
http://www.mccc.edu/~kelld/page400.html
Links to basic math concepts such as Whole Numbers, Fractions, Percents, Functions, Square Measures, Probability and more. Very Good

FLASHCARDS FOR KIDS NEW URL! 2/06
http://www.edu4kids.com/index.php
Online flash cards for kids to answer. You can choose the type of math, difficulty level, numbers to include, whether to time. Very Good

FREE ARITHMETIC WORKSHEETS NEW!
http://www.sssoftware.com/freeworksheets/
Free arithmetic worksheets to print out and use in the classroom. Whole Numbers: Addition, Subtraction, Multiplication, Division; Decimals: Addition, Subtraction, Multiplication, Division. You can print just the problems or the problems with solutions. Very Good

GOMATH.COM – ONLINE MATH TUTORING
http://www.gomath.com/
Interactive tutorials, puzzles, Algebra Solutions, Geometry Solutions, Formula-to-Go, Virtual Physics, SAT Math, HM Chem and more. Very Good

HALLOWEEN MATH WORD PROBLEMS NEW!
http://www2.lhric.org/pocantico/2ndgrade/halloween.htm
Primary level math word problems with a Halloween theme. Very Good

HAND-MADE MANIPULATIVE INSTRUCTIONS NEW!
http://mason.gmu.edu/%7Emmankus/Handson/manipulatives.htm
Instructions for manipulatives such as triangle cutouts, hexagon cutouts, five-base blocks and more. Very Good

INTERACTIVE MATHEMATICS ONLINE – A THINKQUEST SITE
http://library.thinkquest.org/2647/?tqskip1=1&tqtime=0331
A student-created site with tutorials on Algebra, Trigonometry and Geometry. Very Good

JOKES FOR MATHEMATICS TEACHERS
http://www.sonoma.edu/Math/faculty/falbo/jokes.html
Just what it says. Jokes for math teachers. Funny. Very Good

LINKS TO INFORMATION ON NUMBER SYSTEMS NEW!
http://mathforum.org/alejandre/numerals.html
Links to information on different number systems. Sections: Arabic, Babylonian, Chinese, Egyptian, Greek, Mayan and Roman. Very Good

MATH COVE – TEACHING AND LEARNING MATH WITH JAVA
http://www.utc.edu/~cpmawata/
Math projects: Rigid Transformations, High School Geometry, Graph Theory Lessons, and Trominoes. Very Good

MATH FACT CAFÉ
http://www.mathfactcafe.com/
Math worksheets to print out or create your own. Very Good

MATH IDEAS FOR SCIENCE FAIR PROJECTS
http://mathforum.org/teachers/mathproject.html
Suggestions for science fair projects using math. Very Good

MATH LEAGUE HELP TOPICS
http://www.mathleague.com/help/help.htm
Math help for 4^th through 8^th grade students. Includes whole numbers, decimals, fractions, metrics, algebra, etc. Very Good

MATH LINKS NEW!
http://edtech.kennesaw.edu/jcheek1/math.htm
A page of math links. Very Good

MATH LINKS NEW!
http://www.blountk12.org/learninglinks/math.htm
A long list of links to math websites. Very Good

MATH MAGIC – PROBLEM OF THE MONTH NEW!
http://www.stetson.edu/~efriedma/mathmagic/
Features a different math puzzle every month. Includes an archive and links to other math puzzle sites. Very Good

MATH NERDS
http://www.mathnerds.com/
"Math Nerds provides free, discovery-based, mathematical guidance via an international, volunteer network of mathematicians. Math Nerds does not supply answers to homework, take home tests and the like; rather, we provide hints, suggestions, and references to help our clients understand and solve their mathematical problems." Very Good

MATH PROJECTS FOR SCIENCE FAIRS
http://camel.math.ca/Education/mpsf/
A list of possible math projects for science fairs. Sections: Numbers, Scheduling, Games, Geometry, Combinatorics, Other Projects, References and Web Sites, etc. Very Good

THE MATHEMATICAL ART OF M.C. ESCHER
http://www.mathacademy.com/pr/minitext/escher/
Information on Maurits Escher who created works of art using mathematical principles. Explores Escher’s art and shows how to create your own. Very Good

MATHEMATICS ARCHIVE
http://archives.math.utk.edu/k12.html
A full page of links. Sections: Lesson Plans, Software, Topics in Mathematics, Contests and Competitions, Professional Societies and Other. Very Good Note: Also in Lesson Plans section.

MATHEMATICS HISTORY – A THINKQUEST SITE
http://library.thinkquest.org/22584/?tqskip1=1&tqtime=0331
A history of mathematics from the earliest forms thousands of years ago to today. Also includes profiles of important mathematicians. Very Good

MIDDLE SCHOOL MATH – LINKS AND LESSONS NEW!
http://schools.rps205.com/curriculum/middle_school_mathmain.htm
A page of links and lessons for middle school math students. Also in Lesson Plans section. Very Good

MORE MATHEMATICS THAN SCIENCE NEW!
http://id.mind.net/~zona/mmts/mmts.html
Learning activities and problems for math. Includes functions, geometry, trigonometry, curves, graphs and more. Very Good

MR. R.’S MATH STORIES AND POEMS NEW!
http://www.mathstory.com/
Fun math poems and an interactive story (some parts not interactive right now). Very Good

MULTIMEDIA MATH GLOSSARY
http://www.hbschool.com/glossary/math2/index_temp.html
A math glossary for all grade levels. Very Good

MULTIPLICATION – AN ADVENTURE IN NUMBER SENSE
http://www.naturalmath.com/mult/
Tricks for multiplication in the form of a dialog between mentor and student. More extensive than it sounds. Very Good
PARABOLAS IN LIFE NEW!
http://edservices.aea7.k12.ia.us/edtech/teacherpages/jmbrown/index.html
An activity in which students read about real parabolas and then do the exercises after each section. Very Good

POPULAR MATH ACTIVITIES
http://www.quia.com/dir/math/
Math activities submitted by teachers and students. Very Good

THE PROBLEM SITE – PROBLEMS & BRAIN TEASERS NEW!
http://www.theproblemsite.com/default.asp
"Welcome to The Problem Site, a special problem solving site for both students and adults. This site hosts 'Problem Of the Week' and 'Problem of the Month' pages, maintained by educators, mathematicians, puzzle enthusiasts, and others who care about students' ability to think critically." Sections: Doug’s Brain Food, Graeme’s Problem of the Month and Mr. T’s Calculus Problems. You can also search the Problem Archive. Very Good

RIBBIT’S MATH VENTURES
http://www.mohonasen.org/staffdev/mathven/Ribbit/rdefault.htm
Life-based math problems for primary to intermediate students. Includes a Teacher’s Section. "Each problem begins with an introduction that includes a general story line. From there, hyperlinks provide access first to general information within a broad area and then to more specific information. Thus, problem presentation is set up hierarchically and enables the problem solver to choose the sequence in which he or she gathers information and data that is presented within text, diagrams, maps, tables, graphs, and/or pictures." Very Good

SIMPLY NUMBER SENSE! – A THINKQUEST SITE
http://library.thinkquest.org/17888/?tqskip1=1&tqtime=0331
A student-created site to teach basic mathematics without reliance on calculators. Sections: Homeroom, Memorization, Mental Math and Homework. Very Good

TEACHING TREASURES ONLINE INTERACTIVE MATHEMATICS
http://www.teachingtreasures.com.au/maths/Maths_more.html
An extensive number of printable worksheets for elementary level math students. Also includes flash cards and picture Maths. Very Good

WHAT GOOD IS MATH?
http://oncampus.richmond.edu/academics/as/education/projects/webunits/math/home.htm
Six math-based activities for students to choose from. "Here are some situations that you may find yourself in on any given day. Each one involves the use of math skills. Don't be scared! The checkout lady will not give you a test on your math skills on the spot. These are just examples of how a basic knowledge of math can come in handy." Very Good

THE WORLD OF AUNTY MATH – MATH CHALLENGES FOR KIDS
http://www.auntymath.com/
Simple math problems to "challenge" elementary level students. Very Good

WORLD OF NUMBERS
http://www.worldofnumbers.com/
"In this restyled website you'll find a variety of facts and figures about topics from the World of Numbers. Don't look for a logical order. It is an amalgamation of randomly gathered numbers, curios, puzzles, palindromes, primes, gems, your much valued contributions and more general information" Very Good

BASKETMATH INTERACTIVE NEW!
http://www.scienceacademy.com/BI/
Students complete math problems to get "baskets" in basketball. Good

BATTING STATISTICS NEW!
http://www.studyworksonline.com/cda/content/article/0,,EXP192_NAV2-3_SAR350,00.shtml
Information on the importance of statistics to baseball and an explanation of batting statistics. Good

BRAIN BASHERS BRAIN TEASERS AND PUZZLES NEW!
http://www.brainbashers.com/
Click on Puzzles for Crossnumber puzzles which are like crossword puzzles but using numbers. Good

CREATING A SAFE, SUPPORTIVE MATH CLASSROOM
http://www.mathgoodies.com/articles/safe_math.shtm
A article on creating a supportive math classroom that helps students overcome a fear of failure. Good

DIVISIBILITY RULES NEW!
http://www2.sunysuffolk.edu/wrightj/MA22/Num/DivRule.htm
"How can you tell whether a number is divisible by another number (leaving no remainder) without actually doing the division? Why do "divisibility rules" work?" Lists the rules for 3-13. Good

FRACTION TO DECIMAL CONVERSION NEW!
http://math2.org/math/general/arithmetic/fradec.htm
Instructions for converting fractions to decimals. Good

FREQUENTLY ASKED QUESTIONS IN MATHEMATICS
http://db.uwaterloo.ca/~alopez-o/math-faq/node1.html
Questions and answers about math, from the trivial to advanced. (Note: More advanced than trivial). Good

FUNBRAIN.COM
http://www.funbrain.com/
Fun, free games for kids includes math games such as Dare to be Square, Mathcar Racing, Math Baseball, and more. Good

GEOMETRY PROBLEM OF THE WEEK
http://mathforum.org/geopow/
Geometry problems are posted and users can send in the answers. Includes an archive to look at previous problems and their solutions. Good

HOMEWORK GUIDELINES FOR MATHEMATICS
http://www.purplemath.com/guidline.htm
A set of guidelines for writing math homework and exercises. Good

HUNKIN’S MATH EXPERIMENTS
http://www.hunkinsexperiments.com/
A set of experiments to perform in math. Example: Cubes: How to push a cube through the middle of a cube the same size. Good

INTERACTIVE MATHEMATICS MISCELLANY AND PUZZLES NEW URL! 2/06
http://www.cut-the-knot.org/index.shtml
An eclectic collection of math games and puzzles and tips. Good

INTERACTIVE TANGRAM
http://www.tangram.i-p.com/
An online interactive tangram. Good

INTRODUCTION TO THE MANDELBROT SET NEW!
http://www.ddewey.net/mandelbrot/
"The Mandelbrot set, named after Benoit Mandelbrot, is a fractal. Fractals are objects that display self-similarity at various scales. Magnifying a fractal reveals small-scale details similar to the large-scale characteristics. Although the Mandelbrot set is self-similar at magnified scales, the small scale details are not identical to the whole. In fact, the Mandelbrot set is infinitely complex. Yet the process of generating it is based on an extremely simple equation involving complex numbers." It explains the math behind fractals. Not many examples. Good

K-12 MATH PROBLEMS, PUZZLES, TIPS & TRICKS
http://mathforum.org/k12/mathtips/index.html#beatcalc
Puzzles, tips and tricks for math. Sections: Calculation Tips, Math Problems and Math Puzzles. Includes a Students page and a Teachers Place (see separately on list). Good

KIDS.COM – TANGRAMS NEW!
http://www.kidscom.com/games/tangram/tangram.html
Students can test their skill by choosing a tangram game. Good

MATH AND CHILDREN’S LITERATURE NEW!
http://www.carolhurst.com/subjects/math/math.html
Shows how math activities can be applied with different children’s books. Includes some reviews. Good

MATH FOR MORONS LIKE US – A THINKQUEST SITE
http://library.thinkquest.org/20991/home.html?tqskip1=1&tqtime=0331
A student-created site with tutorials, sample problems, quizzes and more. Includes both Learning and Interacting sections. Plus a formula database and math links. Good

MATH GAMES FROM AROUND THE WORLD NEW!
http://www.kconnect.com/kc-ATW.html
Math games from Africa, Greece, Japan and the U.S. Good

MATH JOKES
http://www.scg.uwaterloo.ca/~hchcheng/math_jokes.html
A short list of math jokes. Good

MATH REFERENCE HANDOUTS – ACTIVITIES NEW!
http://www.teachervision.fen.com/lesson-plans/lesson-6222.html
A collection of math handouts to print out. Good

MATH WHALE
http://www.mathwhale.com/
Math activities using sea animals such as whales and sharks to teach preschool students that math is fun. Good

METRIC CONVERSION CALCULATOR
http://ts.nist.gov/ts/htdocs/200/202/conv.htm
A converter to convert length, weight, area, volume, etc. into metric measurements. Good

MULTO MATH GAME
http://www.teachers.net/lessons/posts/1302.html
A math game for all levels similar to Bingo. Good

THE PI TRIVIA GAME
http://eveander.com/trivia/
A trivia game using pi. Good

SHAPE PAN BALANCE NEW!
http://illuminations.nctm.org/mathlets/shapebalance/index.html
Interactive math tool. "Place weights on each pan of the balance by dragging the shapes and releasing the mouse button. Count Items represents the weight configurations as algebraic-type expressions. Show Array removes the algebraic-type expressions. Reset Balance clears the balance and keeps the weights the same. New Problem clears the balance and changes the weights." Good

THE STANLEY PARK CHASE NEW!
http://schoolcentral.com/willoughby5/
A game for primary students. They solve the problem to help Dexter the dog find his hidden gold pieces. Good

TEACH R KIDS MATH
http://www.teachrkids.com/
Online worksheets for pre-school to grade 3. Click on the topics at left for the worksheets. Good

WOMEN MATHEMATICIANS NEW!
http://www.agnesscott.edu/lriddle/women/women.htm
A number of brief biographical profiles of women mathematicians. You can search by name or in chronological order. Good

LESSON PLANS & ACTIVITIES

ACTIVITIES FOR PI MATHEMATICS - ACTIVITIES
http://archive.ncsa.uiuc.edu/Edu/RSE/RSEorange/Piactivities.html
Activities for understanding the concept of π. Excellent

ALGEBRA – GRADE 9 – LESSON PLANS
http://www.lessontutor.com/ltalgebra9home.html
A series of 12 lesson plans for beginning Algebra for grade 9 students. Excellent

BASEBALL STATS – LESSON PLAN NEW!
http://www.sciencenetlinks.com/Lessons.cfm?DocID=108
A lesson plan for grades 6-8 on statistics. "In this lesson, students will use baseball data available on the Internet to develop an understanding of different ways in which data can be analyzed. First, they will practice selecting data to perform calculations in response to pre-formulated questions. Then they will use the data to formulate and answer their own questions." Excellent

BE ALL YOU CAN BE….FOR MINIMUM WAGE? – LESSON PLAN NEW!
http://www.econedlink.org/lessons/index.cfm?lesson=EM94
A lesson plan for middle school students on wages. "How has the elimination of compulsory service affected the number of military personnel that currently serve in the United States armed forces? What would you predict happened to the size of the military once the draft was eliminated? Economists often compare certain economic indicators from one year to the indicators (e.g., gross domestic product, consumer price index) from another year in order to determine the percentage change from one year to the next. In order to test your predictions, you must calculate the percentage change in the size of the military from one year to the next." Excellent

CHANGES IN CHANGE – LESSON PLAN NEW!
http://www.econedlink.org/lessons/index.cfm?lesson=EM63
A lesson plan for grades 3-5 on making change. "Money is something we see and use everyday. It is important to be able to count coins and bills and be able to make change. Today's lesson will sharpen your money counting skills and introduce you to some new coins." Excellent

CHESS MATH – LESSON PLAN
http://www.iit.edu/~smile/ma9107.html
A lesson plan in which students reinforce their knowledge of angles by becoming chess pieces on a floor chess board. Excellent

COUNTING EMBEDDED FIGURES – LESSON PLAN NEW!
http://illuminations.nctm.org/lessonplans/6-8/embedded-68/index.html
A lesson plan for grades 6-8 on embedded figures. "This activity allows students to look for patterns within the given data. After looking at the pattern, the student should be able to form generalizations for the problem. Furthermore, this activity sharpens the algebraic skills of the students." Excellent

COUNTING ON THE HAVOC OF HURRICANES: COMPARING STATISTICS OF HURRICANE FLOYD TO OTHER RECENT HURRICANES: A MATH LESSON – LESSON PLAN NEW!
http://www.nytimes.com/learning/teachers/lessons/19990916thursday.html
A lesson plan on statistics for grades 6-12. "In this lesson, students define and classify all the different ways in which numbers are used in forecasting and coping with the effects of a hurricane. They then conduct research to compare and contrast these numbers as they apply to Hurricane Floyd and other recent hurricanes. Finally, they graph their findings." Excellent

COVERING THE PLANE WITH REP-TILES – LESSON PLAN
http://illuminations.nctm.org/lessonplans/6-8/tiles/index.html
A lesson plan for grades 5-8 math students. "In this activity, students discover and explore a special kind of tiling of the plane. Rep-tiles are geometric figures such that n copies can fit together to form a larger, similar figure. Students will experiment with various shapes and values of n. Spatial sense is encouraged by the need to visualize and perform transformations with the shapes involved." Excellent

DIAGONAL OF A SQUARE – LESSON PLAN
http://www.math.nmsu.edu/breakingaway/Lessons/diagonalofsquare1/diagonalofsquare.html
"One of the very important aspects of the mathematical method in science is its ability to isolate a few essential features and analyze them independently of any context. Most equations in physics have this property. But in schools, especially in the early grades, such an isolation of features often gives the impression that mathematics is simply disconnected from the rest of the world. We present here an introduction to some important algebraic concepts that can be introduced in the early grades in a concrete setting." Excellent

DO GRAPHING CALCULATORS ADD UP?: THE USE AND ABUSE OF GRAPHING CALCULATORS: A DEBATE FOR THE MATH CLASSROOM – LESSON PLAN
http://www.nytimes.com/learning/teachers/lessons/19990902thursday.html
A lesson plan for grades 6-12 on the use of graphing calculators. "In this lesson, students examine the arguments for and against the use of graphing calculators in mathematics classrooms and on standardized tests. Students analyze the debate through reading and discussing a New York Times article, participating in a round-table discussion, and seeking out opinions of people whom they know and incorporating their views into a brief newspaper article about the issues." Excellent

EDUCATOR’S REFERENCE DESK – MATH LESSON PLANS NEW!
http://www.eduref.org/cgi-bin/lessons.cgi/Mathematics
Lesson plans from the Educator’s Reference Desk (formerly AskEric). Sections: Algebra, Arithmetic, Functions, History, Number Sense, Patterns, Process Skills, Applied Math, Careers, Geometry, Measurement, Number Theory, Probability and Statistics. Note that several are listed separately. Excellent

EXPLORE MATH – LESSON PLANS
http://www.exploremath.com/index.cfm
A huge collection of math lesson plans. You must join but it is free to join. Click on the Math scroll bar to see the list. Excellent

THE FIBONACCI SERIES – LESSON PLAN NEW!
http://www.sciencenetlinks.com/Lessons.cfm?DocID=134
A lesson plan for grades 6-8 on number patterns. "In this lesson, students will explore the Fibonacci series. They will identify the pattern among the Fibonacci numbers, look for applications of these numbers, and explore the ways that this pattern can be related to objects and shapes in both the natural and designed world. Science and technology are rich and especially important contexts in which to learn the value of mathematics and to develop mathematical problem solving skills, but they are not the only ones." Excellent

FRACTALS: A FRACTALS UNIT FOR ELEMENTARY AND MIDDLE SCHOOL STUDENTS - LESSON PLANS
http://math.rice.edu/~lanius/frac/
A collection of lessons on fractals. Excellent

FUN MATHEMATICS LESSONS
http://math.rice.edu/~lanius/Lessons/
Fun math lessons at several levels. Sections: More Counting, All About Ratios, Who Wants Pizza? A Fraction Lesson, Let’s Graph, Let’s Do Math, Fun-and-Sun Rent-a-Car, Visualize an Infinite Series, Let’s Count, The Million Dollar Mission, Calendar Fun-It’s Algebra, Rectangle Pattern Challenge, A Fractal Geometry Unit, Mathematics of Cartography, Patterns-Blocks/Fractions, Dueling Pinwheels, I Love Calculus, Power Cards, Online Geometry, Polyominoes, Stressed Out, Handsqueeze, The Hot Tub, and Right Hand or Left? Excellent

GETTING IT RIGHT! THE PYTHAGOREAN THEOREM – LESSON PLAN
http://www.uen.org/Lessonplan/preview?LPid=154
A lesson plan for grades 6-8 on the Pythagorean theorem. "The Pythagorean Theorem is one of the most useful relations in mathematics. In the middle grades, an investigation of the lengths of the sides of right triangles and the area of squares drawn on those sides introduces students to irrational numbers, Pythagorean triples (derived from right triangles with integer sides), and methods of indirect measurement used for solving real-life problems." Excellent

LESSON PLANS AND ACTIVITIES FOR MATH – MSTE NEW!
http://www.mste.uiuc.edu/html.f/resource.php
A group of lesson plans and activities for teaching math. Excellent

MATH JEOPARDY – LESSON PLAN
http://ofcn.org/cyber.serv/academy/ace/math/cecmath/cecmath046.html
A lesson plan for grades 4-12 which adapts the Jeopardy game to math lessons. Excellent

MATH LESSON PLANS, PUZZLES AND WORKSHEETS NEW URL!
http://www.edhelper.com/math.htm
A large number of math puzzles, worksheets and problems. Not just basic math, includes quadratic equations, etc. Excellent

MATH ON THE MOUND: USING THE WORLD SERIES TO TEACH MATH – LESSON PLAN
http://www.nytimes.com/learning/teachers/lessons/20001026thursday.html
A lesson plan for grades 6-12 in which students brainstorm ways to incorporate baseball into math classes. Excellent

MATHEMATICAL PROOFS – LESSON PLAN NEW!
http://www.sciencenetlinks.com/Lessons.cfm?DocID=109
A lesson plan for grades 9-12 on mathematical proofs. "In this lesson, students will explore the nature of mathematical proofs and mathematical inquiry. This lesson would be appropriate after students are familiar with the Pythagorean Theorem. The nature of logic and evidence are topics that should come up frequently in science, history, social studies, and mathematics." Excellent

MATHEMATICS AT THE MALL – LESSON PLAN
http://illuminations.nctm.org/lessonplans/6-8/mall68/index.html
A double set of lesson plans for grades 3-5 and grades 6-8 using a shopping mall setting. "In the following lesson, students participate in an activity in which they develop number sense in and around the shopping mall. There are two activities in this lesson. The first is appropriate for grades 3 - 5 and the second for grades 6 - 8. Both grade-level activities deal with size and space, estimation, measurement, and applications involving percent." Excellent

THE MINT: IDEAS FOR TEACHERS - LESSON PLANS NEW!
http://www.themint.org/teachers/index.php
Ideas and lesson plans for teaching students in grades 6-12 to manage money. Lessons include: Budgeting Your Financial Resources and The Stock Market: Risks and Rewards. Click on Ideas for Young Kids for excellent ideas on helping children understand how to manage money and how our financial systems work. Excellent

MRS. GLOSSER’S MATH GOODIES – LESSON PLANS & ACTIVITIES
http://www.mathgoodies.com/
"Math Goodies is a free math help site featuring interactive lessons, homework help, worksheets and forums! We have over 400 pages of activities for students, teachers and parents." Includes lots of online lesson plans but some are only available on the CD-ROM (for sale). Sections: Lessons, CD-ROM, Forums, Homework, Worksheets, Software, Math Type, and Study Smart. Excellent

NUTRIENTS BY THE NUMBERS: USING MATH TO EXPLORE NUTRITION – LESSON PLAN
http://www.nytimes.com/learning/teachers/lessons/20021003thursday.html
A lesson plan for grades 6-12 on percentages. "In this lesson, students strengthen their percentage and fraction skills in comparing the nutritional values of similar food products. They then individually calculate their daily intake of various nutrients and compare their diets to recommended daily percentages." Excellent

PATTERNS AND FUNCTION LESSON PLAN
http://illuminations.nctm.org/lessonplans/6-8/patternsandfunctions/index.html
A lesson plan for grades 6-8. "In this lesson, students will investigate properties of perimeter, area, and volume related to various geometric two- and three-dimensions shapes." Excellent

A PENNY SAVED IS A PENNY AT 4.7% EARNED – LESSON PLAN NEW!
http://www.econedlink.org/lessons/index.cfm?lesson=EM157
A lesson plan on budgeting money. "There are lots of ways to receive income, and lots of ways to spend it. In this EconomicsMinute you will develop two budgets, or plans, to help you decide how to allocate your income. Assuming you do not love making dollar bill rings, there are really only two things that someone like you can do with your income: spend it or save it." Excellent

PLANET SCHICK – MATH WEBQUESTS AND ACTIVITIES
http://www.meridian.wednet.edu/~dshick/webquest.htm
A collection of math webquests and activities. Excellent Note: Also in Webquests section.

PRIZE NUMBERS: A NOVEL APPROACH TO MATH – LESSON PLAN
http://www.nytimes.com/learning/teachers/lessons/20000427thursday.html
A lesson plan for grades 6-12 on math. "In this lesson, students explore what a proof is, how and why mathematicians create them and finally they compose essays on how reason and logic are employed in the workplace." Excellent

PROBABILITY: THE STUDY OF CHANCE – LESSON PLAN
http://ofcn.org/cyber.serv/academy/ace/math/cecmath/cecmath015.html
A lesson plan for grades 5-12 on probability. "The theory of probability is an important branch of mathematics with many practical applications in the physical, medical, biological and social sciences. An understanding of this theory is essential to understand weather reports, medical findings, political doings and the state lotteries. Students have many misconceptions about probability situations." Excellent

PROJECT INTERACTIVATE – LESSON PLANS
http://www.shodor.org/interactivate/
Extensive math activities and lessons for teachers and students. Most are focused for grades 6-8 but some are applicable for grades 3-5. Sections: Teachers, Students, Lessons, Activities, Elementary, What’s New, Discussions and Tools. Excellent

PROJECT SKYMATH: MAKING MATHEMATICAL CONNECTIONS – LESSON PLANS
http://www.unidata.ucar.edu/staff/blynds/Skymath.html
A collection of lesson plans for using weather data to teach math. Contains 16 classroom activities for middle school students. Excellent

PUT THE HEART INTO MATHEMATICS: CARDIAC OUTPUT, RATES OF CHANGE AND ACCUMULATION – LESSON PLAN
http://illuminations.nctm.org/imath/912/cardiac/index.html
A lesson plan for grades 9-12. "This activity explores the measurement of the amount of blood being pumped by a heart. The goal of this investigation is a rich exploration of rates of change and accumulation in context. As presented here, the measurement is done from a discrete perspective, but the generalization to a continuous perspective and use of calculus (integrals) can be done easily." Excellent

SAVING PRIVATE PENSIONS: EXAMINING CONCERNS WITH FUTURE FINANCIAL PLANNING – LESSON PLAN NEW!
http://www.nytimes.com/learning/teachers/lessons/20031113thursday.html
A lesson plan on finances for grades 6-12. "Students will consider the importance of financial security after retirement, examine current problems with pension plans in the private sector, research different retirement options, and create a "How it Works" poster. Then, they will develop public service announcements illustrating the current problems with pension plans and a particular option for retirement fund planning." Excellent

SERVING UP REALITY: EXPLORING THE COSTS AND CONSIDERATIONS OF OWNING AND RUNNING A RESTAURANT – LESSON PLAN NEW
http://www.nytimes.com/learning/teachers/lessons/20031211thursday.html
A lesson plan on finance for grades 6-12. "In this lesson, students will consider the factors that go into running a restaurant and examine how the restaurant industry impacts the economy of the United States. Then students will work in groups to create skeleton proposals for new restaurants and consider the obvious and hidden costs of this type of business." Excellent

SHAPE AND SPACE IN GEOMETRY - ACTIVITIES
http://www.learner.org/teacherslab/math/geometry/
Online activities about shape and space. For grades K-8. Excellent

SHAPE HUNT – LESSON PLAN NEW!
http://www.sciencenetlinks.com/Lessons.cfm?DocID=133
A lesson plan on shapes for grades K-2. "In this investigation, students look for examples of patterns and shapes in both the natural and designed world. This investigation uses tangrams, or pattern blocks, in many of the activities." Excellent

SIMPLY THE BEST: DETERMINING CRITERIA OF GREATNESS IN THE MATH OR SOCIAL STUDIES CLASSROOM – LESSON PLAN
http://www.nytimes.com/learning/teachers/lessons/19981023friday.html
A lesson plan for grades 6-12 on graphs and statistics. "In this lesson, students explore both the objective and subjective criteria used to determine the 'greatness' of a person or team. Students create graphs comparing sports statistics and argue the need for other criteria to adequately judge whether a person or team is 'the best' in their profession." Excellent

SPATIAL REASONING USING CUBES AND ISOMETRIC DRAWINGS – LESSON PLAN
http://illuminations.nctm.org/imath/6-8/isometric/index.html
A lesson plan for grades 6-8 in geometry. "In this interactive geometry investigation students will explore polyhedra using different representations and perspectives for three dimensional block figures. In addition, students will examine area and volume concepts for block figures within this context." Excellent

STORIES THAT REALLY ADD UP: EXPLORING WAYS IN WHICH CHILDREN’S STORIES CAN BE USED TO TEACH MATH AND OTHER SUBJECTS – LESSON PLAN
http://www.nytimes.com/learning/teachers/lessons/20011012friday.html
A lesson plan for grades 6-12. "In this lesson, students work in groups to develop math lessons for younger students that each stems from a popular children's story. Group members then individually develop lessons for other subject areas based on their group's story, creating interdisciplinary units." Excellent

TEACH ALL STUDENTS MULTIPLICATION FACTS – LESSON PLANS
http://www.multiplication.com/
Activities and lessons to teach the multiplication tables. Includes ideas for games, quizzes, and much, much more. Note: Has some commercial content but most of the lessons, games and quizzes are free. Excellent

TEACHER NET LESSON PLAN EXCHANGE
http://www.teachers.net/cgi-bin/lessons/sort.cgi?searchterm=Mathematics
A huge collection of math lesson plans for pre-school to senior high students. These are teacher-submitted and the quality varies. Excellent

TEACHERS HELPING TEACHERS MATH LESSON PLANS
http://www.pacificnet.net/~mandel/Math.html
A full page of lesson math lesson plans. Excellent

USING YOUR MELON FOR MATH: APPLYING FRACTION, MULTIPLICATION, AND DIVISION RECIPES – LESSON PLAN
http://www.nytimes.com/learning/teachers/lessons/19990715thursday.html
A lesson plan for grades 6-12 in applied mathematics. "In this lesson, students use recipes to practice their fraction multiplication and division skills by calculating the amounts of ingredients needed to make specific recipes, given varied numbers for the 'yield' quantity. Students will also use these fraction skills to convert small units of cooking measures to larger units." Excellent

A WEIGHTY TASK: ASSESSING THE VALUE OF STANDARD UNITS OF MEASUREMENT – LESSON PLAN
NEW!
http://www.nytimes.com/learning/teachers/lessons/20030527tuesday.html
A lesson plan on measurement for grades 6-12. "In this lesson, students aim to understand the need for standardization of units of measurement. They pose their own standards for the value of a kilogram and compare them with the currently used standard. Finally, students invent their own units of measurement and explain their usage." Excellent

WHELK-COME TO MATHEMATICS – AN I-MATH INVESTIGATION – LESSON UNIT NEW!
http://illuminations.nctm.org/imath/912/Whelk/index.html
A unit for grades 9-12 on mathematical functions. Sections: Make a Conjecture, Conduct an Experiment, Analyze the Data and Work to a Conclusion. Excellent

YOU BET! LEARNING ABOUT PROBABILITY AND BEHAVIOR IN GAMBLING – LESSON PLAN NEW!
http://www.nytimes.com/learning/teachers/lessons/20010329thursday.html
A lesson plan on probability for grades 6-12. "In this lesson, students will explore the mathematical probabilities involved in gambling and how these factors affect people's behavior." Excellent

ANALYZING NUMERIC AND GEOMETRIC PATTERNS OF PAPER POOL – LESSON PLAN NEW!
http://illuminations.nctm.org/lessonplans/6-8/PoolTable/index.html
A lesson plan for grades 6-8 in which students play an imaginary game of pool and analyze the number patterns. Very Good

BROWNTOWN MALL – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-
in/printlessons.cgi/Virtual/Lessons/Mathematics/Applied_Math/APM0013.html
A lesson plan for grades 4-5 in which they create a budget, calculate taxes and apply mathematics to real-life situations. "Students will be able to maintain a checkbook register, calculate taxes, create and implement a budget and use other classroom skills to become productive members of the small city of Browntown." Very Good

CALCULATOR PATTERN PUZZLES – LESSON PLAN NEW!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Patterns/PAT0199.html
A lesson plan for K-5 on number patterns. Very Good

CANDY BASKETS: TRUNCATED PYRAMIDS – LESSON PLAN
http://www.math.nmsu.edu/breakingaway/Lessons/candybaskets1/candybaskets.html
"Design and make from poster board open-topped containers in the shape of inverted truncated pyramids, having a regular polygon (of your choice) for a base. Adding handles to the containers makes interesting and fun candy baskets." Very Good

CLASS BANK – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-in/printlessons.cgi/Virtual/Lessons/Mathematics/Applied_Math/APM0002.html
A lesson plan for grade 5 in which students use their math skills to manage a class bank. Very Good

EGYPTIAN MULTIPLICATION – LESSON PLAN
http://atozteacherstuff.com/lessons/EgpytianMult.shtml
A lesson plan for 9^th grade students. "Upon completion of lecture on Egyptian Multiplication, these ninth grade general mathematics students will be able to multiply any two numbers using the Egyptian algorithm with ninety-five percent accuracy." Very Good

EQUIVALENT FRACTION MUNCH WITH PIZZA PIE – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Arithmetic/ATH0029.html
A lesson plan for grades 4-5 on fractions. "Use concrete pictorial models to represent fractions and mixed numbers; relate symbols to the models. Use models and pictures to compare fractions including equivalent fractions and mixed numbers; explain the comparison." Very Good

EVALUATING MATHEMATICAL MODELS – LESSON PLAN NEW!
http://www.sciencenetlinks.com/Lessons.cfm?DocID=132
A lesson plan for grades 9-12 on mathematical models. "Because mathematics plays such a central role in modern culture, scientifically literate students must develop a basic understanding of the nature of mathematics. It is important for students to realize that mathematics, like science and technology, incorporates both finding answers to fundamental questions and solving practical problems." Very Good

EXPLORING GEOMETRY ON THE SPHERE – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-in/printlessons.cgi/Virtual/Lessons/Mathematics/Geometry/GEO0002.html
A lesson plan for grades 6-12 in geometry. "This particular activity allows students to discover that not all geometry is Euclidean." Very Good

EXPLORING SIMILARITY USING SCALE DRAWINGS – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Geometry/GEO0003.html
A lesson plan for grades 8-12 on the properties of similarity. Very Good

FRACTION CONVERSION BINGO – LESSON PLAN
http://www.col-ed.org/cur/math/math52.txt
"The purpose of this lesson is to reinforce previous math lessons involving the relationships between fractions, decimals, and percents." Very Good

HYPERBOLAS AND ELLIPSES – LESSON PLAN
http://www.math.nmsu.edu/breakingaway/Lessons/hyperellip1/hyperellip.html
A lesson plan on hyperbolas and ellipses. "Introduction- In spite of the popularity of graphing calculators, students do not have a good knowledge of the shapes and properties of hyperbolas and ellipses. In this unit students learn some basic properties of these curves, and they draw them, in order to get familiar with their shapes." Very Good

LEARNING ABOUT RATIOS: A SANDWICH STUDY – LESSON PLAN
http://www.col-ed.org/cur/math/math17.txt
A lesson plan for grades 4-6 on ratios. "The purpose of this activity is to provide students with a concrete introduction to the concept of ratios." Very Good

LEARNING FRACTIONS WITH M&M’S – LESSON PLAN NEW!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Arithmetic/ATH0023.html
A lesson plan for grades 2-3 on fractions. "This lesson is designed to improve students' understanding of fractions by using a fun manipulative (M & M candies). The students will sort their bowl of M & M's into colors and then, for each color, they will write out, both longhand and numerically, the fraction that represents how many of their M & M's are that color." Very Good

M&M GRAPHING AND PROBABILITY – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-in/printlessons.cgi/Virtual/Lessons/Mathematics/Probability/PRB0005.html
A lesson plan for grades 1-5 on probability in which students use M&M candies to develop charts and graphs and determine probability. Very Good

MARS FRACTION HUNT – LESSON PLAN NEW!
http://www.eduref.org/cgi-in/printlessons.cgi/Virtual/Lessons/Mathematics/Arithmetic/ATH0012.html
A lesson plan for grades 3-5 on fractions. "This lesson is designed to give the students practice in the use of fractions, changing fractions, using equivalent fractions, and paying attention to detail. This lesson works well at fourth grade level, but I find it can have good use with advanced third graders." Very Good

MATH LESSON PLANS NEW!
http://www.teachersdesk.com/lessons/lessons_math.htm
A collection of math lesson plans. Seem to range from K-12. Very Good

MATHEMATICS ARCHIVE – LESSON PLANS
http://archives.math.utk.edu/k12.html
A full page of links. Sections: Lesson Plans, Software, Topics in Mathematics, Contests and Competitions, Professional Societies and Other. Very Good Note: Also in Websites section.

MATHEMATICS IN THE WORKS COLLAGE – LESSON PLAN
http://www.successlink.org/great/g199.html
A lesson plan in which students create collages using examples of real-life math uses. Very Good

MIDDLE SCHOOL MATH – LINKS AND LESSONS NEW!
http://schools.rps205.com/curriculum/middle_school_mathmain.htm
A page of links and lessons for middle school math students. Very Good

THE MINORITY MAJORITY: LEARNING ABOUT PERCENTAGES IN CENSUS FIGURES – LESSON PLAN
http://www.nytimes.com/learning/teachers/lessons/20030123thursday.html
A lesson plan for grades 6-12 on percentages. "In this lesson, students design a census class and school, then tabulate the results." Very Good

MONSTROUS MATH – LESSON PLAN NEW!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Arithmetic/ATH0202.html
A lesson plan on fractions for grades 4-6. "In this lesson, students use fraction circles to create a "fraction monster." Students practice their skills in adding fractions with unlike denominators. The activity also provides an opportunity to integrate creative writing into the math curriculum" Very Good

MULTIPLICATION AND DIVISION OF INTEGERS – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-in/printlessons.cgi/Virtual/Lessons/Mathematics/Arithmetic/ATH0201.html
A lesson plan for grades 6-7 on integers. "This lesson focuses on two basic operations on integers. The
goal is for students to enhance their understanding of multiplication and division, using counting numbers and their negative counterparts." Very Good

MULTIPLYING BINOMIALS WITH FOIL – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Algebra/ALG0002.html
A lesson plan for grades 8-10 on algebra. "Given two binomials, students will be able to multiply the correct terms of the binomial together and be able to combine the two binomials into a single polynomial." Very Good

NUMBER SPIRAL CIRCLE PATTERN – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Arithmetic/ATH0032.html
A lesson plan for grade 4 on number patterns. Very Good

PROBABILITY: ROLL THE DICE! – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Probability/PRB0200.html
A lesson plan for grades 10-12 on probability. "This activity can be used as an introduction to probability. Students work in pairs to record outcomes when dice are rolled. Students also research the history and modern uses of probability." Very Good

REAL-LIFE SITUATIONS USING BASIC MATH SKILLS – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Applied_Math/APM0006.html
A lesson plan for grades 5-10 in which students learn how to budget personal expenses, handle bank accounts and more. Very Good

ROMAN NUMERALS – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Number_Theory/NUM0001.html
A lesson plan for grades 5-8 in which students become familiar with Roman Numerals and learn how to manipulate them and translate them into Arabic numbers. Very Good

SIMULTANEOUS EQUATIONS USING ELIMINATION – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Algebra/ALG0004.html
A lesson plan for grades 9-12 on equations. "The Elimination method is an effective method for solving a system of two unknowns. This lesson provides students with immediate feedback using a computer program or online applet." Very Good

SMILE METRIC STYLE – LESSON PLAN
http://ofcn.org/cyber.serv/academy/ace/math/cecmath/cecmath011.html
A lesson plan for grades 4-8 on metric measurement. Very Good

SMILING MAN – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Algebra/ALG0003.html
A lesson plan for grades 6-12 on algebra. "The students will factor trinominals, with 90% accuracy, and use the smiling man to check if the factoring is done correctly." Very Good

SQUARES OF NUMBERS IN MULTIPLICATION – LESSON PLAN NEW!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Arithmetic/ATH0020.html
A lesson plan for grades 2-3 on multiplication. "It is easy enough for students to memorize 3x3=9, 4x4=16, etc. but this lesson gives a visual image for these simple patterns that will facilitate learning other patterns for the multiplication tables and extend to later math concepts. " Very Good

TANGRAMS – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Geometry/GEO0005.html
A lesson plan for grades 4-12 on tangrams "to provide students with some insight as to how the tangram pieces fit together, and to stimulate their interest in forming shapes and exploring patterns using the tangram pieces.." Very Good

TRIANGLE INVESTIGATION – LESSON PLAN NEW!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Arithmetic/ATH0039.html
A lesson plan for kindergarten on triangles. "Students will develop their problem solving skills by arranging the numbers 1,2,3,4,5 and 6 so that each side of the triangle adds up to 10." Good

21 GAME – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-in/printlessons.cgi/Virtual/Lessons/Mathematics/Arithmetic/ATH0001.html
A lesson plan for a math game for grades 2-6. "One person goes first and says the number "one" or "two." The other player says the next one or two consecutive numbers. Each player chooses whether to say one or two numbers during each turn. The players continue to alternate turns and say the next one to two consecutive numbers until someone reaches 21." Very Good

ADDING DECIMALS – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Arithmetic/ATH0204.html
A lesson plan for primary students in which they learn how to add numbers containing decimal points. Good

THE BIRTHDAY PROBLEM: A SHORT LESSON IN PROBABILITY – LESSON PLAN
http://www.mste.uiuc.edu/reese/birthday/
A lesson in probability using class birthdays. For middle or high school level math students. Includes a simulation. Good

CANTEACH NUMBERS – LESSON PLANS NEW!
http://www.canteach.ca/elementary/numbers.html
A short list of lesson plans on numbers range from K-2 to grade 6. Good

COIN POEMS – LESSON PLANS
http://www.teachers.net/lessons/posts/138.html
Simple poems to help children remember the worth of coins. Good

FRACTION FUN! – LESSON PLAN NEW!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Arithmetic/ATH0030.html
A lesson plan on fractions for various grade levels. Good

FRACTIONS WITH ORANGES – LESSON PLAN NEW!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Arithmetic/ATH0206.html
A lesson plan for grades K-2 on fractions. Good

MEASURE HUNT – 2^ND GRADE – LESSON PLAN
http://www.teachers.net/lessons/posts/1171.html
A classroom activity for 2^nd grade students in which they have a treasure hunt using measurements. Good

MONEY TRADING SONG – LESSON PLAN
http://www.teachers.net/lessons/posts/1326.html
A simple song to help children learn about coins. Good

NOT ALLOWED GAME – LESSON PLAN NEW URL!
http://www.eduref.org/cgi-bin/printlessons.cgi/Virtual/Lessons/Mathematics/Applied_Math/APM0011.html
A lesson plan for grades K-3 in which students will add and subtract coins to use the least number of coins to achieve a given amount. Good

SUBTRACTION WAR – MATH GAME – LESSON PLAN
http://www.teachers.net/lessons/posts/1071.html
A lesson plan for elementary students in which they use a deck of cards to form math problems. Short but Good. Good

WEBQUESTS

CYCLING MATHEMATICS – WEBQUEST
http://jets.utep.edu/bel-air/jsalazar/cycling/webquest.htm
A webquest for 10^th grade math students. "There are many different areas in the sport of cycling where mathematics can be applied. Recently there have been many changes with regards to materials and design of bicycles. With the goal always of building a faster bicycle, The question becomes what is the best way to build a fast bicycle. As a basis of comparison, you can compare bicycles that might be used in the standard 40 kilometer time trial. The goal is to build the fastest bicycle for the least amount of money. In other words how many seconds can be gained per dollar spent." Excellent

ETHNOMATHEMATICS WEBQUEST NEW!
http://home.mindspring.com/%7Emjg2/ethalt.html
A webquest on the different ways math was developed in different countries. "Mathematics is not a linear science! Cultures all over the wor